1212223113113 has 8 divisors (see below), whose sum is σ = 1255742225640. Its totient is φ = 1169368414720.

The previous prime is 1212223113107. The next prime is 1212223113119. The reversal of 1212223113113 is 3113113222121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1212223113107) and next prime (1212223113119).

It can be written as a sum of positive squares in 4 ways, for example, as 11901282649 + 1200321830464 = 109093^2 + 1095592^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212223113113 - 2²⁶ = 1212156004249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212223113119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166099820 + ... + 166107117.

It is an arithmetic number, because the mean of its divisors is an integer number (156967778205).

Almost surely, 2^{1212223113113} is an apocalyptic number.

It is an amenable number.

1212223113113 is a deficient number, since it is larger than the sum of its proper divisors (43519112527).

1212223113113 is an equidigital number, since it uses as much as digits as its factorization.

1212223113113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332207067.

The product of its digits is 432, while the sum is 23.

Adding to 1212223113113 its reverse (3113113222121), we get a palindrome (4325336335234).

The spelling of 1212223113113 in words is "one trillion, two hundred twelve billion, two hundred twenty-three million, one hundred thirteen thousand, one hundred thirteen".